|
ИСТИНА |
Войти в систему Регистрация |
ИПМех РАН |
||
Application of XAFS and XRD methods for describing the adsorption characteristics of copper and zinc in hydromorphic soilsстатья Исследовательская статья
Статья опубликована в высокорейтинговом журнале
Статья опубликована в журнале из списка Web of Science и/или Scopus- Авторы: Bauer T.V., Pinskii D.L., Minkina T.M., Shuvaeva V.A., Soldatov A.V., Mandzhieva S.S., Tsitsuashvili V.S., Nevidomskaya D.G., Semenkov I.N.
- Журнал: Environmental Geochemistry and Health
- Том: 44
- Год издания: 2022
- Издательство: Springer Nature
- Местоположение издательства: Switzerland
- Первая страница: 335
- Последняя страница: 347
- DOI: 10.1007/s10653-020-00773-2
- Аннотация: Modeling metal sorption in soils is of greatimportance to predict the fate of heavy metals and to assess the actual risk driven from pollution. The present study focuses on adsorption ofHMions on two types of hydromorphic soils, including calcaric fluvisols loamic and calcaric fluvic arenosols. The individual and competitive adsorption behaviors of Cu and Zn on soils and soil constituents are evaluated comprehensively. It is established that the sorption processes were best described with the Langmuir model. The results suggest that the calcaric fluvic arenosols are more vulnerable to heavy metal input compared to fluvisols loamic. In all cases, Cu had a higher range of values of the adsorption process parameters relative to Zn. The Zn is likely to be the most critical environmental factor in such soils since it exhibited a decreased sorption under competitive conditions. The retention mechanisms of HM in hydromorphic soils are considered. Based on theoretical calculations of ion activity in soil solutions using solubility diagrams of Cu and Zn compounds, the possibility of precipitation of Cu hydroxide and Zn carbonate in the studied soils is shown. Direct physicalmethods of nondestructive testing (XAFS and XRD)are applied to experimentally prove the formation of these HM compounds on the surface of montmorillonite, the dominant mineral in hydromorphic soils, and calcite. Thus, the combination of both physicochemical methods and direct physical methods can provide a large amount of real information about the mechanisms of HM retain with solid phases.
- Добавил в систему: Семенков Иван Николаевич
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|